How to determinate version of glibc library under Ubuntu Linux

    To determinate glibc version you can by following steps:
  • #1 at any distributive you can cal library as a programm
    /lib/libc.so.6 

    Result:
    GNU C Library (EGLIBC) stable release version 2.10.1, by Roland McGrath et al.
    Copyright (C) 2009 Free Software Foundation, Inc.
    This is free software; see the source for copying conditions.
    There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
    PARTICULAR PURPOSE.
    Compiled by GNU CC version 4.4.1.
    Compiled on a Linux >>2.6.24-23-server<< system on 2009-10-07.
    Available extensions:
    	crypt add-on version 2.1 by Michael Glad and others
    	GNU Libidn by Simon Josefsson
    	Native POSIX Threads Library by Ulrich Drepper et al
    	BIND-8.2.3-T5B
    For bug reporting instructions, please see:
    <http://www.eglibc.org/issues/>.
  • #2 under debian based linux you can execute following command
    sudo aptitude show libc6

    Result:
    Package: libc6
    State: installed
    Automatically installed: no
    Version: 2.10.1-0ubuntu15
    Priority: required
    Section: libs
    Maintainer: Ubuntu Core developers <ubuntu-devel-discuss@lists.ubuntu.com>
    Uncompressed Size: 9,556k
    Depends: libc-bin (= 2.10.1-0ubuntu15), libgcc1, tzdata, findutils (>= 4.4.0-2ubuntu2)
    Recommends: libc6-i686
    Suggests: glibc-doc, debconf | debconf-2.0, locales
    Conflicts: belocs-locales-bin, tzdata (< 2007k-1), tzdata-etch
    Breaks: nscd (< 2.9)
    Replaces: belocs-locales-bin
    Provides: glibc-2.10-1
    Description: GNU C Library: Shared libraries
     Contains the standard libraries that are used by nearly all programs on the system. This package includes shared versions of the standard C library and the standard math
     library, as well as many others.